Tractok-plow



WVA. GILFILIJXN.'l

THACTORPLOW.

APPLICATION FILEDNOV. 12| i917. i l l Patented Oct. 21,1919.l

3 SHEETS-SHEET l W. A. GILFILLAN.

l TRACTOR PLOW.

, APPLICATION FILED N0V.12I 1917. 1,319,063. Patented out. 21,1919.

I' .K 3 SHEETS-SHEET s.

"IllllllllllllII-IIIIIII 2,151.-

UNITED STATESv PATENT I onirica y WILLIAM A, GILFILLAN, or GHILLICOTHE, ILLINoIs.

TRACTOR-PLOW.

1,319,063, 4Specification of Letters Patent. Patented Oct, 21, 1919,

t j Application filed November 12, 1917. SeraljNo. 291,708. v

State of Illinois, havevinvented certain new and useful Improvements in Tractor-Flows,

of which the following is a specification.v

This inyention has reference more par-` ticularly to tractor plows in -which the plows are supported from theframe of the tractor and positioned so that the plows automati-l cally hold a guiding wheelof themachine against the side of the furrow and thereby serve to regulate the distance .at w-hich 'theY plows operate from the edge o f the, furrow previously made;

The object of the invention is to provide a tractor plow of simple form and inexpensive" to construct, which is capable of convenient adjustment to meet the. requirements of' plowing.

A further object is to provide means whereby the tractor may be 'adjusted so that it will follow the furrow previously made and thereby insure-the plows operating ata uniform 'distance from the furrow previously made.

Av further object is to provide a guiding wheel for the tractor which may be set so that it will automatic-ally `hug the furrow previously made and thereby render it'unnecessary for the operator to give continuous attention .to the steering of the device.

' A further Objectis to provide a tractor plow wherein the plows are readily removable and the tractor otherwise constructed plow having a 'drivevwheeh having a wheel traveling in a new furrow and a wheel travcling .in the old furrow previously made,

andthe plows positioned-intermediate of the said wheels and arrangedso that'the lateralstrain of the plows in passing through the ground will cause the said wheels to hug the l vertical wall of the furrow.

This invention has other objects whichY will appear from the following specification in connection `with the accompanyingdrawings and which are particularly' pointed out in the claims.

In thedrawings, gre lis .of

interference from the' Y I the taken from the I ightl hand sideof' hegmachine';

Fignewrfrqnt viewofxhe'maine, portions:

thereof Abeim; broken awayto show details of constructiongaud Fig. 4,' a' sectional view substantiallyjon `the line 's-vea, of Fig. "1L-"1', 1 Theframe 'of the machinel 'comprises1 'a plate 2,'a'nd suitably connected attheir rear endsby a crossjmember not shown. r Mounted upon the sills atA a point about midway of the length of the frame is a motorl shown-by' the dottedlines at 3,'whic'h'may be provided with a suitable housing'or cover 4, the'sejsaid ground and so that, the front wheels will be held down and prevented from climbing. out of the furrow. At the rear end of the frame members l, there is a frame structure 5, provided with a' seat 6, foi` the operator, and

.provided with a draw bar 7, rigidly connected with the frame of the machine and pair of spaced.-.vlongitudinal' sillsl, suitablyj connected at their forward ends by a' crosslparts being lpositioned in such a manner to strengthened by means 'of braces 8, so that it is capable of pulling heavy loads.-

Depending from the frame members, ad-

jacent the rear ends are the brackets `9, provided with bearings 10,in which is mounted the rear aX-le or shaft 11, upon which a single drive wheel 12 is mounted, the said drive -inore particularly noted. y

Suitable gearing isprovided for driving.

the.` traction Vwheel 12', from the motor 3, which may .consist of a sprocket 13, fixed upon the shaftv 11, to which -the tractionv wheel 12l is likewise secured so 4that the turning of the sprocket 13 imparts motion to the wheel 12. A counter-shaft 14, may-be lo- 'cated intermediate of the motor 8 and the rear drive-shaft11', and provided .with a '.large'gear wheel 15, meshing with a small pinion 16, on the motor \or transmission shaft anda small. sprocket 17 on thev shaft means'of chain 18 to the rear drive shaft. v lIt is to be understood thatin connection Vwith th'e power supplying devices, it is necessary-fito. provide the usual'transmission mech- -wheel being positioned so as to travel in theis a pair of supporting wheels 19 and 20,'

which are adjustable so that the tractor may be used to travel over ordinary smooth surfaces or relative positions of the wheels may be altered to meet the conditions of plowing. In the latter use the'v left'h'and wheel 20, is intended to travel on the unplowed ground and the right hand wheel 19 is intended to travel in the furrow made previously. The

bottom ofthe lfurrow in'which the wheel .19

travels is considerably below the surface of the ground and for the purpose of'providing adjustment for maintaining the machine in a' level ppsition, when so operated, the left hand wheel 20,'is secured to the lower end of the rack 21,- which is movable vertically in a j guidewayv22, formed at the end of the cross plate 2, and'there isa pinion 23 j ournaled in bearings adjacent and in mesh with the rack 21, the said rack being connected by means ofthe shaft 24 to -alever 25, at the rear of said lever 25 being provided with a suitable hand latch coperating with a hand latch 26, cooperating with a notch segment 27, whereby the lever'25 may-beadjusted-to raise and lower the wheel 204 and hold it in the desired position. Y

The wheel .19 is mounted on the lower end of abell crank 28, which is pivotally mounted adjacent they intersection at arms of the lever, onan'axis parallel withvthe length of -the machine'in'a bracket 29 atthe en d of the cross plate 2. Y -V This constructionA provides for a tilting or inchnatlon of thf'efwheel 19', `so that it will roll readily in the furrow and against the wall Aofthe furrow. The upright arm of the "bell-crank 28, extends above the frame of slot limits the lateral movementof thevlever l the machine through a slot 30,'-formed in the upper end of the bracket 29, vwhich said 28,'and accordingly thetilting of the wheel 19, and there is a long lever 31 pivoted in a of the ywheel 19, land there is a slotted guide 35, through which the lever 31 is passed which Amay be provided with holes 36, through which a pin may be passed to engage the lever 31, and hold it inthe desired position.

For the purpose of steering the machine the axle 37 of the wheel 2O is pivotally mounted-on the vertical axis atthe lower end of rack 21 and the axle'38 of the wheel y 19 is pivotally mounted on a normally ver'- tical axis at the lower end of the lever 28.

43 being-squared and passed through bear' ings in the bracket'44, which permit rotation and longitudinal movement of the shaft. Withinthe bearings 44v is a worm wheel 45, which vis mounted on the 'shaft 43 to turn therewith and is held against longitudinal movement with the movement of the shaft so that as the wheel 20 is raised and lowered, the said shaft slides through the worm wheel 45. Mounted on the bracket 44, so as the machine, adjacent the operators seat, the

to mesh with the worm wheel 45, is a worm 46, which is connected by means of a shaft 47, to a hand wheel48, mounted in a bracket l49 adjacent the operators seat so that the at 50 and 51are located intermediate of the furrow of the desiredwidth. The plow`51 is positioned fromthe plow 50 the usual distance and' is located immediately -in front of the traction wheel 12, so that the said wheel4 12 travels in the bottom of the furrow made by the plow '51S I j I These plows are'connecte'd to theplow beams 52, which extend to the forward end of the frame and are pvoted on-va horizon- "tal axisi to theshaft 53, eXtend ing crosswise A --of the machine. For the purpose of tilting the plowsv to cause them to .properly enter the ground-the shaft 53 and forwardends of' the plow beams are made'adjustablex For' this purpose, the ends of the shaft 53 are connected to shoes 54', Vrr'l'ounted to slide in vertical guideways 55, provided on the cross plate 2. A cross brace 56, which connects 'the forward ends of the plow beam 52, has

alink 57 pivotally connected at its lower end to the cross brace. The upper end of the said line is connected to the larm of a lever' 58, which is mounted on a shaft 59, journaled in bearing 60 on the side members 1. .The shaft 59 projects beyond the sill l, at

one side of the machine and has the lever 61,'

attached thereto, the free end of 'said lever being connected by means ofthe rod 62, to the hand lever 63, at the rear of the machine `in convenient reach ofthe operator.

This lever has a latch 64, cooperating with a segment 65, whereby the lever may be ad- .justedand .locked in various positions for raising and lowering the forward ends of the plow beams 52 and holding them in de? sired position of' elevation.

Forthe raising and lowering of the plows there is provided a vertical rack for each plow beam which is pivotally A connected thereto-as at 67, and extends througha vertical guideway 68on the frame of the machine,- the said v,f jjuideway and rack being of sufhcient length and strength to hold the plows l'against lateral displacement as they are passed through the ground. This isfurth'er accomplished by cross braces 69,

which combine the plow beams into a unitarystructure. These racks 6 6, slide freely through the guideway 68, so that they may .fbe removed when it is desired to detach'the plows and there is 'a cross shaft 70, immediately in front of the racks 66, suitably jour.- naled inbearings 71, on the guideway'.

" This shaft has a pinion 72 immediately in front of and in mesh with eachrack 66,

whereby the racks may be raised andv l'owp, ered and there is a bevel gear 7 3, on the endof the shaft 70, meshing with a bevel pinion,

'74, at the forward end of the shaftv 7 5, which is suitably j ournaled in bearings on the frame. At the rear end of the shaft v75 is a hand. wheel 76, within convenientreach of the operator, whereby thel racks 66 and. plows may be-vertically adjusted, such atl-- justment being sufficient to remove the plows entirely from the ground or to cause them to engage the ground'atthe required depth.

When the machine is traveling over' level ground, the wheel 19 is adjusted by means of the lever 31, in an upright position and the wheel 20 is adjusted to be ina horizontal plane with the wheel 19. In the operation of plowing, however, the wheel 20 is raised I Aso that as the wheel 19 travels in the fur-l row, theframe of the machine will be main;A vtained in a level position. The engagement of the plows with the ground has a tendency to swing the machine to the left, which' movement however, is prevented by engagementof the traction wheel 12, with the new furrow andthe engagement of the wheel 19 with the old furrow. To facilitate operation ofthe wheel 19, against the` walls of the furrow, and to prevent the wheel frolla climbing out of the furrow, it is tilted or adjusted at the desired angle to accomplish this purpose.

In the operating of the machine, the front wheels are adjusted by means of a 'steering wheel 48 parallel with the furrow or if -necessary headed in slightly toward the inner wall of the furrowsoA that the wheel tends to travel in close contact with kthe inner wall of the furrow. When so positioned the machine, on account of the lateral tendency Agiven thereto by the passing of the plows` through the ground, on account of the tractionvwheel-12, traveling in the `furrow and on account of the adjustment of the wheel 1.9 automatically follow the old furrow previously made without continued attention or steering by the operator and will be thereby caused to cut thenew furrows at a uniform distance from the old furrows.

I 'claim- `1. In a plow,the Ycombination of a frame,

-a -supporting wheel-mountedfon the frame,

a pair of steering wheels mounted on opposite sides of the frame at a distance from the 'supporting'wheel and provided with mecha- Anism for changing the direction of the vwheels for steering the machine, and adjustable means for tilting one of said steering wheels on a horizontal axis at an angle to the other'of sai'd'steering wheels, whereby the lead of the steering wheel may be adjusted to take up inequalities in the line of draft durin travel of the plow.

Q2. Ina p ow, the combination of a frame,

a.A supporting wheel for supporting l the frame, a pair of steering wheels mounted'on oppositesides of the frame at a distance from thedrive wheel, each of said wheels being'-pivotallyv supported lon an upright ax i s,xniechanism for simultaneously adjust- 'ing the vsaid'wheels on their upright axis for steering the machine, means for raising and loweringone. 1of said wheels, and means for tilting-one ofjsaid` wheels on a horizontal aXisat an angular relationto the other of' said wheels', whereby the -lead of the'steering wheelmay' be adjusted 'to take up iniqualities in the line of draft during travel of the plow.

3. ln a plow, the combination of a frame,

.cally .adjustincr means for adjusting the pivoted steering wheel to vary the lead thereof during travel ofthe plow, and manual means for vertithe rst steering wheel, to maintain the frame horizontal at all times.

4. In a plow, theV combination of a main frame, a' supporting wheel mounted on the frame, a pair of opposed steering wheels mounted ,on the frame, mechanism for changing direction of travel of the wheels, adjusting means for ltilting one of said steering wheels on a horizontal axis ait an angle to the other of said steering wheels 'to vary the lead of the 'tilting wheel to meet varying inequalities in the line of draft, and a plow carried by the frame spaced transversely a distance from -the tiltable steering wheel equal to the distance between the furrows.

5. In a' plow, the combination of a frame, a supporting wheel mounted on the frame, a pair of opposed steering wheels mounted on the frame in advance of the drive wheel, one of said wheels constitnting a land and 'the other steering wheel a furrow wheel,

a `horizontal pivotal support for the furrow wheel, means for steering said wheels, means for tilting oneof said wheels relatively and with 'reference to the main frame, and a plow carried by the frame' spaced transversely a distance from the tilt-able steering wheel vequal to the distance between the furrows. p

6. In a plow, the combination of a frame,

' a supporting wheel-mounted on the frame,

a pair of opposed supporting and steering Wheels connected with the frame, means for turning said wheels for steering purposes, means for tilting one of said steering lwheels on a horizontal aXisat an angle to the other of said steering wheels, anda plow carried by the frame spaced transversely from the the spacing of the turrows.

7. In a plow, the combination of the frame, a supporting wheel mounted on the Y frame, a air of opposed supporting' 4and steering w eels connected with the frame,

- means for turning said wheels for steering in presence of two witnesses.

wiLLIAM A. GILEILLAN. p

purposes, means for tilting one of said steering wheels on a horizontal axis at an' angle to the other of said steering wheels, plows,

and means for supporting the plows in A vJustalole for parallelism and non-parallelism,

means connecting said wheels to `facilitate their being turned in unison and at corresponding angles, means operable from the rear of the-frame for causing said wheels to be turned,- means connecting one of said wheels with said frame to facilitate relative Vertical adjustment, means connecting the" other of said wheels with the frame to facilitate the tilting of the former at Various angles. with relation to the latter, plows, and

means for supporting said plows on the frame in relation to thev tilting steering wheel to' admit the travel of the latter in the furrows.

9. In a plow, the combination oa frame,

combination, a frame, a

means for supporting one end of the frame,

opposed steering wheels arranged at the other end of the .f1-ame, pivotal means connectmg one of the wheels to the frame and adapted to be adjusted for inclining the wheel to conform to the inclination -ot `the surface in the bottom, a furrow, vertically` adjustable means forv connecting the other wheel to the frame for maintaining the frame in a horizontal position at all times, steering mechanism connected to both wheels for simultaneously turning thesame and a plow carried in the frame.

' In testimony whereof I aiix my signature Witnesses:

EVA MCCREADY, W. V.` Term'.l v 

